Trolley-mount



H. J. AND E. F. MURPHY.

TROLLEY MOUNT.

APPLICATION FILED FEB. 23, 1921.

SHEET l l 'II 2 SHEETS Patented Oct.

H. l. AND E. F. MURPHY.

TROLLEY MOUNT. APPLHIATIONk FILED FEB. 23. 192i.

Patented Oct. 4, 192i.,

2 SHEETS-SHEET 2- HUGH J'. MURPHY AND EDWARD F. MURPHY, 0F TROY, NEW YORK.

TROLLEY-MOUNT.

T o all w hom @'15 may concern Be it known that we, HUGH J. MURPHY and EDWARD F. MURPHY, citizens of the United States, residing at Troy, in the county of Rensselaer and State of New York, have invented new and useful Improvements in Trolley-Mounts, of which the followingY is a specication.

' Reference may be had to the accompany- Ving drawings and thereference characters marked thereon, whichy form a part of this specification. Similar.V characters refer to similar parts in the several figures therein.

The principal object of the invention is to prevent injury to the cross-wires and other overhead structure of a trolley railway due to the jumping of the trolley from the trolleyfwire..`

`Specific objects of the invention will appear in connection with the Jfollowing description. Y In carrying out'our invention we provide means whereby a trolley which has jumped from the trolley-wire isat once automati cally swung down to, andmaintained at a level sufficiently below that o the trolley-v ywire to prevent thetrolley vfrom engaging Y the overhead structure suchl as jcrossfwires showing the .trolley-pole in retrieved4v po-V and the like. Figure l oi". thedrawings is a view in side elevation of 'Y our improved trolley-mount sitionin which the trolley is supported at a level belowthato ythe trolley`wire,xthe trolley and trolley-wirebeing notshown.

Fig. 2 is a top plan view of the same. Y Fig. 3 is a view similar to Fig. l., showing the trolleyfpole in Aposition for thetrolley to' engage the trolley-wire, "the trolleyV and trolley-wire being not shown. Y

Referring to the drawings wherein the invention is shown in preferred form, 4l is a trolley-pole-support in the form of a turntable rotatively mounted upon ajpost '2, on the roof, 3, of a trolley-car.

The .trolleyfpole, 4L, has a base, 5, ,pivotally mounted atb, upon the support, l, whereby the pole can be swungback and orthbetween va substantially vertical position and a substantially horizontal position.

Speecationof Letters Patent.

Patented Uct. 4t, 1921.

Application led February 23, 1921.l Serial No. 447,085.

Vexert a pull upon the pin which tends to more or less raise the trolley-pole when the pin is located in either of the seats, 8 and 9.

The force of the spring, 11, is so regulated that when the pin, l0, occupies the in- 'ner seat, 8, the pull' upon the trolley-pole is sulicient to hold it at substantially the angle shown in solid lines in Fig. 3, at which an- ,qle the trolley is adapted to engage and be held upwardly againstv theV trolley-wire.

The angle of the slot, 7, is such that when the trolley-pole is elevated to substantially vertical position,n as indicated by the dotted lines in Fig. 3,'as when the trolley jumps from the trolley-wire, the pin, 10, automatically shifts from thev inner seat,8 to

the outer seat,` 9, passing over the intervening abutment, 12, in the slot, 7.

The` form and arrangement of the slots and seatsare such that when the pin, l0, occupiesV the outer seat, 9, the pull of the spring, l1, is not sufficient to raise the trolley-wireV to the angle shown by solid lines in Fig. 3, but is only suieient to raise "the pole to substantially the angle shown in Fig. l, in which position the trolley is maintained at a level below that of the trolley-wire, in which position the trolley passes safely beneath the Overhead structure, such as cross-wires, etc.

When it is desired to restore the trolley to operative engagement with the trolleywire it becomes necessary to shift the pin, 10, from the vouter seat, 9, back to the inner seat, 8, and we have shown means for thus shifting the pin by movement of the trolleypole down to substantially horizontal position as indicated by dotted'lines in Fig. 1.

The pin-shifting mechanism comprises a curved lever, 13, pivoted at 14, upon the trolley-pole base, 5, and so shaped that when it is swung upwardly it tends to forcev the pin, 10, out of the outer seat, 9, and inwardly along the slot, 7, into the inner seat. 8.

This upward swinging movement Yof the lever, 13, is caused by engagement with a fulcrum block, 1'5, on the support, 1, as the trolley-pole is swung down to approximately horizontal position.

The position which the lever thus assumes in forcing the pin, 10, into the inner seat seat, 8, is indicated by dotted lines in connection with the dotted position of the trolleypole in Fig. 1.

A stop-pin, 16, is adjustably mounted in a slot, 17, in the trolley-pole base in position to form a stop or support for the lever, 13, inthe moreelevated positions of the trolleypole.-

l e The operation of the deviceis as follows:

`Normally the parts are in the position shown by solid lines in Fig. 3, in which position the trolley would be in engagement with the trolley-wire, and the pin, 10, seated in the inner seat, 8. As the trolley jumps from the wire the pull of the spring, 11, causes the pole to be suddenly elevated Vto approximately vertical position as indicated by dotted linesin Fig. 3, in which position the pull of the spring causes the pin, 10, to shift from the inner seat, 8, alongthe slot,

:7, to the outer seat, 9.

As the pole rebounds', ythe pull of the spring, 11,-is not suflicient to hold it at its -normal angle, but is suflicient to support it in a somewhat lowerl position, as shown' in Fig. 1, ,in which positionthe trolley is below' the level ofthe trolley-wire and the overhead structure. The pole. is mounted in this safe position, as shown by solid lines in Fig. 1, until the operator is ready to Vrestore the trolley to the wire, and' in doing this, he has merely to pull the trolley-.pole down to substantially horizontal position, as indicated by dotted lines in Fig. 1, thereby causing the lever, 13, to shift the pin, 10, from the outer Y seat to the inner seat, restoring to the spring pivot of the trolley-pole-base; a pin movable along said slot and seatable in the respective seats; and a trolley-pole-supportinr spring-connection between said pin and said support, acting with' less force when the pin is seated in the outer, than whenl the pin is seated in the inner, of said seats, said pin being automatically shifted from the inner to the'outer seat when the trolley-pole is in approximatelyvertical position.

2. In a device of the class described and in combination, a trolley-pole-support; a

Vtrolley pole base `pivotally mounted upon said support and provided with a slot approximately at right anglesto the axis of the trolley-pole,s`aid yslot being formed with two seats at different distances from the pivot of the trolley-pole-base; a pin movable along said vslot and Vseatablevinthe respective seats; a trolley pole supporting spring-connection between said pin andsaid support, acting with lessforce when the pin is seated in the outer, than when the pin is seated in the inner, of" said seats, said pin being automatically shifted from the inner to the outer seat whenthe trolley-poleiis` in ap- '.proximately A.vertical position; and a movable pin-engaging memberautomatically engageable with said pin to force the pin from the Youter to the inner of said seatswhen the trolley-pole isin `approximately horizontal position'.v i

3. In a device. of the classdescribed and in combination, a trolley-pole-fsupport,a

trolley-.pole-base Vpivotally mounted upon said support and providedz with Ya slot formedwith two seatsat diiferent distances from the pivot of the trolley-pole-basa separatedby an abutment; a pin movable along said slot and seatable in y.the respective seats; a spring-connection betweensaid pin vand said support, acting with lessV force when the pin is seated in the outer, than when it is seated in the inner, of said seats, said' pin being automatically shiftable over said abutment from the inner to vthe outer of-said seats when thetrolley-pole, is in approxi- 'mately vertical position; and Ymeans actu- .ated by movement of the trolley-pole to y'approximately horizontal position for shifting said pin over saidabutnient from the outer to the inner of said seats. Y

4. In a deviceof the class described and in combination, a -trolley-polefsupportg,la

trolley-pole-base pivotally mountedl upon said support and providedwith a slotapproximately at right'angles'to the axis of the trolleyfpole, said slot being formed'with two seats` at .different distances, fromthe ,pivot ofV the A trolley-polebase'; a pin' vmovable along said slot and seatable in the re'- spective seats; a trolley-polesupporting spring-connection between said pin and said support, actingwith less force when `the pin is seated Ain the outer,'thanwhe n the pin is seated Vin the inner, of vsaid seats, said pin being automatically shiftable by the Spring seats when the trolley-pole is brought to apforce alone from the inner to the outer of proximately horizontal position. 10 said seats when the trolley-pole is in ap- In testimony whereof We have hereunto proximately vertical position; a, fulcrulnset our hands this 19th day of February, block on said support; and a pin-shifting 1921,

lever pivoted upon the trolley-pole-biase engageable with said fulorum-block to shift HUGH J. MURPHY. the pin from the outer to the inner of Said EDWARD F. MURPHY. 

